question_answer

With regard to the ABO blood typing system, if a man who has type B blood and a woman who has type 0 blood were to have children, what blood types could the children have?

A)  A or 0          

B)  B or 0

C)  AB or 0        

D) . A, B, AB or 0

Correct Answer: B

Solution :

: The man has type B blood and woman has type 0 blood. So, the genotype of their blood group will be \[{{I}_{B}}\,{{I}_{B}}\] or \[{{I}_{B}}\,{{I}_{O}}\]and \[{{I}_{O}}\,{{I}_{O}}\] respectively. The blood type of child will be either B or O This is illustrated below :              (i) For \[{{I}_{B}}\,{{I}_{B}}\] (ii) For\[{{I}_{B}}\,{{I}_{O}}\] : all type B blood